*This is a variation of One Bite and You're Hooked. A creature damaged by a spawn of Kyuss (by class, bite, or nest) is infected with a necrotic Kyuss worm parasite. The parasite will burrow into the characters brain in 10 rounds. They can be removed with a very difficult application of a medical skill (which will also do damage as the worm is cut from the victim). Spawn of Kyuss can also infect already dead corpses with these worms.